CN102588222A - Megawatt wind wheel blade and shear web plate thereof and manufacturing method of web plate - Google Patents
Megawatt wind wheel blade and shear web plate thereof and manufacturing method of web plate Download PDFInfo
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- CN102588222A CN102588222A CN2012100649126A CN201210064912A CN102588222A CN 102588222 A CN102588222 A CN 102588222A CN 2012100649126 A CN2012100649126 A CN 2012100649126A CN 201210064912 A CN201210064912 A CN 201210064912A CN 102588222 A CN102588222 A CN 102588222A
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- shear web
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a megawatt wind wheel blade and a shear web plate of the wind wheel blade and a manufacturing method of the web plate. More than one hole is arranged on a plate body of the shear web plate. The wind wheel blade comprises a pressure surface, a suction surface and more than two shear web plates, wherein at least one of the more than two shear web plates is selected from the shear web plate provided by the invention. The manufacturing method of the web plate comprises the following steps: directly molding by using a die; or firstly manufacturing the plate body by using a die; punching holes on the plate body; and finally bonding a strengthening layer or a flanging around the holes. Through the design of increasing the holes and the strengthening layer or the flanging on the shear web plate and under the requirements of guaranteeing the overall blade strength and rigidity, the blade weight is reduced, the penetrating of front and back cavities is facilitated and the locating of the shear web plate and the detection and maintenance effects of an adhesive surface are facilitated, therefore, the megawatt wind wheel blade and the shear web plate of the wind wheel blade and the manufacturing method of the web plate are more suitable for popularization and application.
Description
Technical field
The present invention relates to a kind of wind wheel blade design of wind-driven generator, particularly relate to the structural design of the making method of a kind of MW wind turbine blade and shear web thereof and this web.
Background technique
Wind wheel blade is the critical component of the effective capturing wind energy of wind power generating set; Its performance quality directly influences the Wind Power Utilization efficient and the suffered load of unit of wind-powered electricity generation unit; Determine the overall performance of unit and the Economy of wind-powered electricity generation development and use to a great extent, be regarded as the key technology and the technical merit sign of wind-power generating system.
Under the condition that the wind-power electricity generation acc power is confirmed, how to improve generating efficiency, to obtain the bigger wind energy of reason, be the target that wind-power electricity generation is pursued always, and catch the raising of wind energy power and the length of blade has confidential relation.42m blade from the 34m blade of 1.5MW to 1.5MW, the 66.5m blade from the 47m blade of 2MW to 6MW, wind wheel blade are for the market demand that satisfies low wind speed wind field and the development need of wind-powered electricity generation unit maximization, and be more and more longer.Research shows that when wind wheel blade increased, the increasing degree of leaf quality was greater than the increase of blower fan energy output amplitude.Obviously, the lightweight of blade can alleviate the quality of blower fan supporting part, helps the life-span of blower fan and the output of energy.The size of length of blade then mainly depends on the blade structure design.For the blade that uses same material, technology, excellent structural design not only can satisfy the relevant design code requirement, can also reduce leaf quality.
Mostly existing blade of wind-driven generator is the thin-shell construction processed by composite material to be divided into pressure side housing, suction surface housing and three parts of shear web on the structure.Pressure side housing, suction surface housing are made up of girder and sandwich structure respectively, and aerodynamic configuration is provided.Shear web is that continuous " [" type, " I " type sandwich structure or shear web and girder are combined into the form of box beam or " 0 " type beam, play a supporting role more than 2.
This shows how further to feed the structure of wind wheel blade, make its lightweight more, the target of still updating for related domain.
Summary of the invention
The technical problem that the present invention will solve provides the making method of a kind of MW wind turbine blade and shear web and this web, makes its lightweight more, is more conducive to detection, maintenance simultaneously, thereby overcomes the deficiency of existing wind wheel blade shear web.
For solving the problems of the technologies described above, a kind of MW wind turbine blade shear web of the present invention offers an above hole on its plate body.
As a kind of improvement of the present invention, be provided with reinforced layer or flange or two textural associations around the described hole.
Described flange is arranged at the one-sided or bilateral of plate body.
Described flange and plate body are " L " type, T-shape, " △ " type or fan-shaped.
Described plate body edge also is provided with bonding plane.
Described bonding plane and plate body are " L " type or " △ " type.
Described plate body is " [" type, " I " type, box beam side plate or " 0 " type beam side plate.
In addition, the present invention also provides a kind of MW wind turbine blade, comprises pressure side, suction surface and two above shear webs, and in the described shear web, at least one adopts above-mentioned shear web.
At last, the present invention also provides a kind of making method of above-mentioned MW wind turbine blade shear web, is to utilize the mould straight forming; Perhaps utilize mould to process plate body, on plate body, punch again earlier, around hole, glued joint reinforced layer or flange at last.
After adopting such design, the present invention has the following advantages:
1, the present invention designs hole and can reduce leaf weight on shear web, around hole, designs reinforced layer or flange, can improve shear web rigidity with holes;
2, the present invention can pass through in the chamber, front and back when producing and overhaul, and has improved efficient;
3, the present invention can be convenient to the web location when producing, and has reduced the use of connecting rod between shear web;
4, the present invention is convenient to repair when shear web and housing are unrealized good bonding.
As stated; The present invention is through increasing the design of hole and reinforced layer or flange on shear web; Guaranteeing to have reduced leaf weight under blade integral intensity and the rigidity requirement, the chamber is passed through before and after being convenient to; Be convenient to shear web location and bonding plane and detect the effect of maintenance, thereby be more suitable for applying.
Description of drawings
Above-mentioned only is the general introduction of technological scheme of the present invention, understands technological means of the present invention in order can more to know, below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
Fig. 1 is the structural representation of a kind of MW wind turbine blade of the present invention.
Fig. 2 is the axial cross section structural representation of Fig. 1.
Fig. 3 is the radial cross section structural representation of Fig. 1.
Embodiment
See also shown in Fig. 1-3, MW wind turbine blade shear web 3 of the present invention is on traditional plate body, to offer an above hole 4.
Wherein, shear web 3 can adopt laminate or sandwich structure, and integral body is " [" type, " I " type, box beam side plate or " 0 " type beam side plate.
The shape of hole 4 can be selected one of circle, ellipse, arch, polygonal (triangle, square, rectangle, rhombus, trapezoidal, pentagon etc.) as required for use, and its position is in 3 symmetries or asymmetric of shear web.
And can around hole 4, set up reinforced layer 7 or flange 5, perhaps two structures combine to be arranged on hole 4 around.Wherein, reinforced layer 7 is laminate, core or the laminboard layer plywood of one deck at least, and its cross section is rectangle, trapezoidal or triangle.Flange 5 is laminate, core or the laminboard layer plywood of one deck at least, can be arranged on the one-sided or bilateral of plate body, and is " L " type, T-shape, " △ " type, fan-shaped etc. between the plate body.
In addition, also bonding plane 6 can be set at the plate body edge, bonding plane 6 adopts laminate or sandwich structure, and is " L " type, " △ " type etc. between the plate body.
MW wind turbine blade of the present invention, the same with traditional wind wheel blade, comprise pressure side 1, suction surface 2 and two above shear webs 3, just incite somebody to action the wherein shear web of at least one shear web employing the present invention hole with holes structure.
The making method of the above-mentioned MW wind turbine blade shear web of the present invention: can be to utilize the mould straight forming; When being layer shop laminate, core, hole 4, flange 5, bonding plane 6, reinforced layer 7 reserve; It is prefabricated to utilize mould, frock to carry out afterwards, processes through runner design impregnation, curing, the demoulding again; Also can utilize mould to process plate body earlier, on the plate body after the demoulding, punch, flange and reinforced layer be in advance in die for molding, then is glued on the plate body, around the hole, and can between bonding plane and plate body, glued joint strengthening rib.
The foregoing description only is used to explain the present invention; The wherein structure of each parts, Placement; And manufacturing process etc. all can change to some extent, and every equivalents of on the basis of technological scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.
Claims (9)
1. a MW wind turbine blade shear web is characterized in that on its plate body, offering an above hole.
2. a kind of MW wind turbine blade shear web according to claim 1 is characterized in that being provided with reinforced layer or flange or two textural associations around the described hole.
3. a kind of MW wind turbine blade shear web according to claim 2 is characterized in that described flange is arranged at the one-sided or bilateral of plate body.
4. a kind of MW wind turbine blade shear web according to claim 2 is characterized in that described flange and plate body are " L " type, T-shape, " △ " type or fan-shaped.
5. a kind of MW wind turbine blade shear web according to claim 1 is characterized in that described plate body edge also is provided with bonding plane.
6. a kind of MW wind turbine blade shear web according to claim 5 is characterized in that described bonding plane and plate body are " L " type or " △ " type.
7. a kind of MW wind turbine blade shear web according to claim 1 is characterized in that described plate body is " [" type, " I " type, box beam side plate or " O " type beam side plate.
8. a MW wind turbine blade comprises pressure side, suction surface and two above shear webs, it is characterized in that in the described shear web, and at least one adopts each described shear web among the claim 1-7.
9. the making method of each said MW wind turbine blade shear web among the claim 1-7 is characterized in that:
Be to utilize the mould straight forming; Perhaps
Utilize mould to process plate body, on plate body, punch again earlier, around hole, glued joint reinforced layer or flange at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100649126A CN102588222A (en) | 2012-03-13 | 2012-03-13 | Megawatt wind wheel blade and shear web plate thereof and manufacturing method of web plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100649126A CN102588222A (en) | 2012-03-13 | 2012-03-13 | Megawatt wind wheel blade and shear web plate thereof and manufacturing method of web plate |
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| CN102588222A true CN102588222A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100649126A Pending CN102588222A (en) | 2012-03-13 | 2012-03-13 | Megawatt wind wheel blade and shear web plate thereof and manufacturing method of web plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325577A (en) * | 2014-09-02 | 2015-02-04 | 江苏金风科技有限公司 | Flanging mould, assembling mould, and paving method and moulding method of moulding material |
| CN113007042A (en) * | 2019-12-20 | 2021-06-22 | 江苏金风科技有限公司 | Blade repairing method of wind generating set, blade cementing structure and blade |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066747A (en) * | 2008-06-23 | 2011-05-18 | 丹麦技术大学 | A wind turbine blade with angled girders |
| CN102084124A (en) * | 2008-04-24 | 2011-06-01 | 刀具动力学有限公司 | A wind turbine blade |
| CN201972843U (en) * | 2011-01-26 | 2011-09-14 | 中国科学院工程热物理研究所 | Horizontal-axis wind turbine blade |
| CN202483810U (en) * | 2012-03-13 | 2012-10-10 | 国电联合动力技术有限公司 | Megawatt level wind wheel blade and shear web thereof |
-
2012
- 2012-03-13 CN CN2012100649126A patent/CN102588222A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102084124A (en) * | 2008-04-24 | 2011-06-01 | 刀具动力学有限公司 | A wind turbine blade |
| CN102066747A (en) * | 2008-06-23 | 2011-05-18 | 丹麦技术大学 | A wind turbine blade with angled girders |
| CN201972843U (en) * | 2011-01-26 | 2011-09-14 | 中国科学院工程热物理研究所 | Horizontal-axis wind turbine blade |
| CN202483810U (en) * | 2012-03-13 | 2012-10-10 | 国电联合动力技术有限公司 | Megawatt level wind wheel blade and shear web thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325577A (en) * | 2014-09-02 | 2015-02-04 | 江苏金风科技有限公司 | Flanging mould, assembling mould, and paving method and moulding method of moulding material |
| CN113007042A (en) * | 2019-12-20 | 2021-06-22 | 江苏金风科技有限公司 | Blade repairing method of wind generating set, blade cementing structure and blade |
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Application publication date: 20120718 |